Fig. 1

Morphological characterization of Porospora cf. gigantea. A. Trophozoite stage (Tropho #8, Lobster #12) (scale bar = 100 μm). B. Zoom on A, showing trophozoite epimerite (scale bar = 10 μm). C. Rectal ampulla showing cysts in folds (Lobster #4) (scale bar = 1 mm). D. Isolated cyst (Cyst #4, Lobster #12) (scale bar = 50 μm). E. Broken cyst packed with gymnospores (Lobster #4) (scale = 10 μm). F. Section across a cyst illustrating radial arrangement of zoites in gymnospores (JS449 = Lobster #35) (scale bar = 2 μm). G., H. Zoom on intact and broken gymnospores showing zoites (Lobster #4) (scale = 1 μm). All images are scanning electronic micrographs except F which is a transmission electronic micrograph. See also Fig. S1, Tables S2, S3, S4, S5 and S6